ML34118491
Contribuidor
Data
Local
- Idade
- Não especificado
- Sexo
- Não especificado
Detalhes da observação
***Very Rare. Only a handful of records for Oregon, I think, with perhaps the majority still in Malheur. Not a straightforward ID, but the features seem to rule out other raptors. Perhaps someone could forward this information to OBOL if appropriate. We were finishing up our walk along the Eastside Canal Trail opposite Page Springs, and were close the the pump/weir/carp filtering system, when we spotted a raptor fairly high overhead. (This spot has historically been good for raptors as the sail down Steens and hunt over the canyon and river.) Oliver's first impression without binoculars was an accipiter due to the deep wingbeats interspersed in the soaring. Binocular/telephoto views revealed a buteo with a broadly banded dark-and-white tail, dark streaking on the belly, and pale underwings with dark edge tracing. At that point, Red-shouldered became a possibility, and the wing shape seemed consistent, although most of the views were of the bird tilted, restricting the apparent width. The dark trailing edge of the wing doesn't show up as strongly in the photos as what we observed in the field. The photos are backlit, and I did not have time to adjust the ISO since the bird was rapidly gaining altitude and distance. All images after the first one have had the exposure value increased in addition to being cropped, but the originals are available. We feel that the features are most consistent with a hatch year Broad-winged Hawk with much of its adult plumage. Tail banding pattern fits, and the outer rectrices are paler with more diffuse and frequent banding, consistent with not yet having been molted. Molt seems to be partway through the primaries and secondaries. Pale underwing pattern is consistent with immature Broad-winged or immature Eastern/Texas Red-shouldered, but we never observed pale crescents despite looking for them. Tail banding is too bold and thick, with too few bands for all but Broad-winged, elegans Red-shouldered or Gray, but the latter two should have a more discernible white terminal band. Elegans Red-shouldered should have darker reddish coloration below. Perhaps the tail is a bit long and the wings a bit narrow for Broad-winged, so maybe a RS/BW hybrid should be considered, but there doesn't seem to be any specific feature that is too far off, although neither of us has seen all that many of these.
Informação técnica
- Modelo
- Canon EOS 70D
- Lente
- EF400mm f/5.6L USM
- ISO
- 200
- Distância focal
- 400 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/8.0
- Velocidade do obturador
- 1/2000 sec
- Dimensões
- 1306 pixels x 1039 pixels
- Tamanho original do arquivo
- 250.94 KB